Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Jürgen Wörth"'
Publikováno v:
European Journal of Organic Chemistry. 2007:4867-4880
Attempts to synthesize the long soughtafter tris-π-homobenzene cis,cis,cis-2,5,8-cyclononatriene-1,4,7-trione, via the newly prepared cyclononane-1,4,7-trione (C9H6O3), through base-catalysed threefold HBr elimination from an efficiently prepared an
Autor:
Andreas Weiler, Alois Haas, Horst Prinzbach, Emmerich Sackers, Dieter Hunkler, Jürgen Wörth, Torsten Voss, Lothar Knothe, Peter Landenberger, Fabian Wahl, Max Lieb
Publikováno v:
Chemistry - A European Journal. 12:6255-6267
"One-pot" substitution of the twenty hydrogen atoms in pentagonal dodecahedrane (C(20)H(20)) by OH, F, Cl, and Br atoms is explored. Electrophilic insertion of oxygen atoms with DMDO and TFMDO as oxidizing reagents ended, far off the desired C(20)(OH
Publikováno v:
Molecular Microbiology. 56:1586-1600
A novel aerobic benzoate pathway has recently been discovered in various bacteria in which benzoate is first converted to benzoyl-CoA. The further downstream steps are associated with the gene products of the benzoate oxidation gene cluster (box) on
Autor:
Thomas Oßwald, Lothar Knothe, Jürgen Wörth, Dieter Hunkler, Jens Reinbold, Torsten Voss, Andreas Weiler, Bernd von Issendorff, Klaus Weber, Nina Morgner, Horst Prinzbach, Emmerich Sackers, Frank Sommer
Publikováno v:
Chemistry - A European Journal. 8:509-524
The highly pyramidal, highly strained C20H14 1,4,16-dodecahedratriene (4) and C20H12 1,4,10(14),16-dodecahedratetraene (5) are cage olefins with an intriguing “inner life”. For 5 DFT calculations give information about the energetic and geometric
Autor:
Fabian Wahl, Jens Reinbold, Jürgen Wörth, Horst Prinzbach, Markus Wollenweber, Rolf Pinkos, Markus Etzkorn, C. Grund, Johann-Peter Melder, Torsten Voss, Manfred Keller, Dieter Hunkler, Lothar Knothe
Publikováno v:
European Journal of Organic Chemistry. 2000:3855-3886
The established route to the [1.1.1.1]/[2.2.1.1]pagodanes (1, 2) has been applied to the construction of the homologous [2.2.2.2] and [2.1.1.1] skeletons (3, 7). Application of this synthetic scheme to the iso[1.1.1.1]/iso[2.2.1.1]/iso[2.2.2.2] struc
Autor:
Marc Gelmont, Lawrence T. Scott, Bernd von Issendorff, Fabian Wahl, Jürgen Wörth, Horst Prinzbach, Peter Landenberger, Daniela Olevano, Andreas Weiler
Publikováno v:
Nature. 407:60-63
Fullerenes are graphitic cage structures incorporating exactly twelve pentagons. The smallest possible fullerene is thus C20, which consists solely of pentagons. But the extreme curvature and reactivity of this structure have led to doubts about its
Autor:
Klaus Scheumann, Jürgen Wörth, Emmerich Sackers, Martin Bertau, Horst Prinzbach, Jürgen Leonhardt, Hans Fritz, Dieter Hunkler
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1195-1210
For two- to six-fold functionalised dodecahedranes (7–10) the chances for selective variation of their substitution have been explored, as part of a program directed at homododecahedranes and at highly unsaturated dodecahedranes, ultimately C20 ful
Autor:
Jürgen Wörth, Horst Prinzbach, Fabian Wahl, Klaus Scheumann, Andreas Weiler, Martin Bertau, Manfred Keller
Publikováno v:
Tetrahedron. 53:10029-10040
By taking advantage of the novel SN2 pagodane → dodecahedrane routes a preparatively potent access to the parent pentagonal dodecahedrane (2) was explored. The one-pot catalytic procedure (Pd/C/H2) starting from an eightfold functionalized secopago
Publikováno v:
Angewandte Chemie. 105:1788-1791
Publikováno v:
Angewandte Chemie International Edition in English. 32:1722-1726